Skip to main content

Sighting Location

Select Location

Location: Nantucket, Massachusetts, United States

The following ISS sightings are possible from Friday May 14, 2021 through Saturday May 29, 2021

Date Visible Max Height Appears Disappears Share Event
Fri May 14, 9:26 PM 7 min 59° 10° above SW 10° above ENE  
Fri May 14, 11:04 PM 6 min 25° 10° above W 10° above NE  
Sat May 15, 12:42 AM 4 min 14° 10° above NW 10° above NNE  
Sat May 15, 2:19 AM 5 min 22° 10° above NW 10° above ENE  
Sat May 15, 3:56 AM 7 min 79° 10° above WNW 10° above SE  
Sat May 15, 8:39 PM 6 min 33° 10° above SSW 10° above ENE  
Sat May 15, 10:16 PM 6 min 33° 10° above W 10° above NE  
Sat May 15, 11:55 PM 4 min 15° 10° above NW 10° above NNE  
Sun May 16, 1:32 AM 5 min 18° 10° above NNW 10° above ENE  
Sun May 16, 3:08 AM 7 min 62° 10° above NW 10° above ESE  
Sun May 16, 9:28 PM 7 min 49° 10° above WSW 10° above NE  
Sun May 16, 11:07 PM 5 min 16° 10° above NW 10° above NNE  
Mon May 17, 12:45 AM 4 min 16° 10° above NNW 10° above NE  
Mon May 17, 2:21 AM 1 min 17° 10° above NW 17° above NW  
Mon May 17, 2:26 AM 2 min 25° 25° above E 10° above E  
Mon May 17, 4:00 AM 4 min 26° 20° above W 10° above SSE  
Mon May 17, 8:41 PM 7 min 81° 10° above WSW 10° above NE  
Mon May 17, 10:19 PM 5 min 19° 10° above WNW 10° above NNE  
Mon May 17, 11:57 PM 4 min 14° 10° above NNW 10° above NE  
Tue May 18, 1:34 AM 1 min 13° 10° above NW 13° above NNW  
Tue May 18, 9:31 PM 6 min 24° 10° above W 10° above NE  
Tue May 18, 11:09 PM 4 min 14° 10° above NW 10° above NNE  
Wed May 19, 12:46 AM 1 min 18° 10° above NW 18° above N  
Wed May 19, 8:43 PM 6 min 33° 10° above W 10° above NE  
Wed May 19, 10:22 PM 4 min 15° 10° above NW 10° above NNE  
Wed May 19, 11:59 PM 3 min 18° 10° above NNW 18° above NNE  
Thu May 20, 9:34 PM 5 min 16° 10° above NW 10° above NNE  
Thu May 20, 11:12 PM 4 min 16° 10° above NNW 11° above NE  
Fri May 21, 12:48 AM 1 min 13° 10° above NW 13° above NW  
Fri May 21, 8:46 PM 5 min 19° 10° above WNW 10° above NNE  
Fri May 21, 10:24 PM 4 min 14° 10° above NNW 10° above NE  
Sat May 22, 12:01 AM 2 min 22° 10° above NW 22° above NNW  
Sat May 22, 9:37 PM 4 min 14° 10° above NW 10° above NNE  
Sat May 22, 11:14 PM 3 min 22° 10° above NW 21° above NNE  
Sun May 23, 8:49 PM 4 min 15° 10° above NW 10° above NNE  
Sun May 23, 10:26 PM 4 min 18° 10° above NNW 12° above NE  
Mon May 24, 12:03 AM 1 min 18° 10° above NW 18° above NW  
Mon May 24, 9:39 PM 4 min 16° 10° above NNW 10° above NE  
Mon May 24, 11:15 PM 3 min 35° 10° above NW 35° above N  
Tue May 25, 8:52 PM 4 min 14° 10° above NNW 10° above NE  
Tue May 25, 10:28 PM 4 min 29° 10° above NW 24° above NE  
Wed May 26, 12:05 AM < 1 min 12° 10° above WNW 12° above WNW  
Wed May 26, 9:41 PM 5 min 22° 10° above NW 10° above ENE  
Wed May 26, 11:17 PM 2 min 28° 10° above WNW 28° above WNW  
Thu May 27, 8:54 PM 5 min 18° 10° above NNW 10° above ENE  
Thu May 27, 10:30 PM 4 min 63° 10° above NW 63° above NE  
Fri May 28, 9:43 PM 5 min 41° 10° above NW 22° above E  
Fri May 28, 11:20 PM 1 min 14° 10° above WNW 14° above W  
2021-05-15 01:26:00.0,Fri May 14, 9:26 PM,7 min,59°,10° above SW,10° above ENE|2021-05-15 03:04:00.0,Fri May 14, 11:04 PM,6 min,25°,10° above W,10° above NE|2021-05-15 04:42:00.0,Sat May 15, 12:42 AM,4 min,14°,10° above NW,10° above NNE|2021-05-15 06:19:00.0,Sat May 15, 2:19 AM,5 min,22°,10° above NW,10° above ENE|2021-05-15 07:56:00.0,Sat May 15, 3:56 AM,7 min,79°,10° above WNW,10° above SE|2021-05-16 00:39:00.0,Sat May 15, 8:39 PM,6 min,33°,10° above SSW,10° above ENE|2021-05-16 02:16:00.0,Sat May 15, 10:16 PM,6 min,33°,10° above W,10° above NE|2021-05-16 03:55:00.0,Sat May 15, 11:55 PM,4 min,15°,10° above NW,10° above NNE|2021-05-16 05:32:00.0,Sun May 16, 1:32 AM,5 min,18°,10° above NNW,10° above ENE|2021-05-16 07:08:00.0,Sun May 16, 3:08 AM,7 min,62°,10° above NW,10° above ESE|2021-05-17 01:28:00.0,Sun May 16, 9:28 PM,7 min,49°,10° above WSW,10° above NE|2021-05-17 03:07:00.0,Sun May 16, 11:07 PM,5 min,16°,10° above NW,10° above NNE|2021-05-17 04:45:00.0,Mon May 17, 12:45 AM,4 min,16°,10° above NNW,10° above NE|2021-05-17 06:21:00.0,Mon May 17, 2:21 AM,1 min,17°,10° above NW,17° above NW|2021-05-17 06:26:00.0,Mon May 17, 2:26 AM,2 min,25°,25° above E,10° above E|2021-05-17 08:00:00.0,Mon May 17, 4:00 AM,4 min,26°,20° above W,10° above SSE|2021-05-18 00:41:00.0,Mon May 17, 8:41 PM,7 min,81°,10° above WSW,10° above NE|2021-05-18 02:19:00.0,Mon May 17, 10:19 PM,5 min,19°,10° above WNW,10° above NNE|2021-05-18 03:57:00.0,Mon May 17, 11:57 PM,4 min,14°,10° above NNW,10° above NE|2021-05-18 05:34:00.0,Tue May 18, 1:34 AM,1 min,13°,10° above NW,13° above NNW|2021-05-19 01:31:00.0,Tue May 18, 9:31 PM,6 min,24°,10° above W,10° above NE|2021-05-19 03:09:00.0,Tue May 18, 11:09 PM,4 min,14°,10° above NW,10° above NNE|2021-05-19 04:46:00.0,Wed May 19, 12:46 AM,1 min,18°,10° above NW,18° above N|2021-05-20 00:43:00.0,Wed May 19, 8:43 PM,6 min,33°,10° above W,10° above NE|2021-05-20 02:22:00.0,Wed May 19, 10:22 PM,4 min,15°,10° above NW,10° above NNE|2021-05-20 03:59:00.0,Wed May 19, 11:59 PM,3 min,18°,10° above NNW,18° above NNE|2021-05-21 01:34:00.0,Thu May 20, 9:34 PM,5 min,16°,10° above NW,10° above NNE|2021-05-21 03:12:00.0,Thu May 20, 11:12 PM,4 min,16°,10° above NNW,11° above NE|2021-05-21 04:48:00.0,Fri May 21, 12:48 AM,1 min,13°,10° above NW,13° above NW|2021-05-22 00:46:00.0,Fri May 21, 8:46 PM,5 min,19°,10° above WNW,10° above NNE|2021-05-22 02:24:00.0,Fri May 21, 10:24 PM,4 min,14°,10° above NNW,10° above NE|2021-05-22 04:01:00.0,Sat May 22, 12:01 AM,2 min,22°,10° above NW,22° above NNW|2021-05-23 01:37:00.0,Sat May 22, 9:37 PM,4 min,14°,10° above NW,10° above NNE|2021-05-23 03:14:00.0,Sat May 22, 11:14 PM,3 min,22°,10° above NW,21° above NNE|2021-05-24 00:49:00.0,Sun May 23, 8:49 PM,4 min,15°,10° above NW,10° above NNE|2021-05-24 02:26:00.0,Sun May 23, 10:26 PM,4 min,18°,10° above NNW,12° above NE|2021-05-24 04:03:00.0,Mon May 24, 12:03 AM,1 min,18°,10° above NW,18° above NW|2021-05-25 01:39:00.0,Mon May 24, 9:39 PM,4 min,16°,10° above NNW,10° above NE|2021-05-25 03:15:00.0,Mon May 24, 11:15 PM,3 min,35°,10° above NW,35° above N|2021-05-26 00:52:00.0,Tue May 25, 8:52 PM,4 min,14°,10° above NNW,10° above NE|2021-05-26 02:28:00.0,Tue May 25, 10:28 PM,4 min,29°,10° above NW,24° above NE|2021-05-26 04:05:00.0,Wed May 26, 12:05 AM,< 1 min,12°,10° above WNW,12° above WNW|2021-05-27 01:41:00.0,Wed May 26, 9:41 PM,5 min,22°,10° above NW,10° above ENE|2021-05-27 03:17:00.0,Wed May 26, 11:17 PM,2 min,28°,10° above WNW,28° above WNW|2021-05-28 00:54:00.0,Thu May 27, 8:54 PM,5 min,18°,10° above NNW,10° above ENE|2021-05-28 02:30:00.0,Thu May 27, 10:30 PM,4 min,63°,10° above NW,63° above NE|2021-05-29 01:43:00.0,Fri May 28, 9:43 PM,5 min,41°,10° above NW,22° above E|2021-05-29 03:20:00.0,Fri May 28, 11:20 PM,1 min,14°,10° above WNW,14° above W|

What am I looking for in the sky?

The space station looks like an airplane or a very bright star moving across the sky, except it doesn't have flashing lights or change direction. It will also be moving considerably faster than a typical airplane (airplanes generally fly at about 600 miles per hour; the space station flies at 17,500 miles per hour).

Below is a time-lapse photo of the space station moving across the sky.

The International Space Station is seen in this 30 second exposure as it flies over Elkton, VA early in the morning, Saturday, August 1, 2015. Photo Credit: NASA/Bill Ingalls The International Space Station is seen in this 30 second exposure as it flies over Elkton, VA early in the morning, Saturday, August 1, 2015. Photo Credit: NASA/Bill Ingalls

Visit the NASA Johnson Flickr Photostream

How do I Spot The Station?

What does all this sighting information mean?

Time is when the sighting opportunity will begin in your local time zone. All sightings will occur within a few hours before or after sunrise or sunset. This is the optimum viewing period as the sun reflects off the space station and contrasts against the darker sky.

Visible is the maximum time period the space station is visible before crossing back below the horizon.

Max Height is measured in degrees (also known as elevation). It represents the height of the space station from the horizon in the night sky. The horizon is at zero degrees, and directly overhead is ninety degrees. If you hold your fist at arm's length and place your fist resting on the horizon, the top will be about 10 degrees.

Appears is the location in the sky where the station will be visible first. This value, like maximum height, also is measured in degrees from the horizon. The letters represent compass directions -- N is north, WNW is west by northwest, and so on.

Disappears represents where in the night sky the International Space Station will leave your field of view.

Astronomical Horizon chart. Click the link for a detailed description of the astronomical horizon and sighting alert messages.

National Aeronautics and Space Administration Page Editor: Bill Keeter NASA Official: Jacob Keaton